Can you build a machine from a cardboard box? Learn how to make a simple automata and discover cranks, levers and cams in this engineering challenge. Gather a small corrugated cardboard box, 2 bamboo skewers, a disposable straw, duct tape, scissors and items to decorate the final creation with Librarian Anita.

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STEM Challenge is created by the San Francisco Public Library from the Youth Librarian STEM team. Stay STEM-tastic by reading, learning and experimenting at home. 

In response to feedback from our Black community and staff, we updated the original name STEM Challenge Yo’Self to STEM Challenge on July 19, 2021. We recognize the original title is appropriated from Black vernacular and perpetuates racism, and has caused harm to our Black/BIPOC community members and staff. Our library is working towards being an anti-racist institution and committed to doing better.